private boolean needContentReload() {
for (int i = mContentStart, n = mContentEnd; i < n; ++i) {
if (mData[i % DATA_CACHE_SIZE] == null) return true;
}
MediaItem current = mData[mCurrentIndex % DATA_CACHE_SIZE];
return current == null || current.getPath() != mItemPath;
}
private void updateImageCache() {
HashSet<Long> toBeRemoved = new HashSet<Long>(mImageCache.keySet());
for (int i = mActiveStart; i < mActiveEnd; ++i) {
MediaItem item = mData[i % DATA_CACHE_SIZE];
long version = item == null ? MediaObject.INVALID_DATA_VERSION : item.getDataVersion();
if (version == MediaObject.INVALID_DATA_VERSION) continue;
ImageEntry entry = mImageCache.get(version);
toBeRemoved.remove(version);
if (entry != null) {
if (Math.abs(i - mCurrentIndex) > 1) {
if (entry.fullImageTask != null) {
entry.fullImageTask.cancel();
entry.fullImageTask = null;
}
entry.fullImage = null;
entry.requestedBits &= ~BIT_FULL_IMAGE;
}
} else {
entry = new ImageEntry();
entry.rotation = item.getFullImageRotation();
mImageCache.put(version, entry);
}
}
// Clear the data and requests for ImageEntries outside the new window.
for (Long version : toBeRemoved) {
ImageEntry entry = mImageCache.remove(version);
if (entry.fullImageTask != null) entry.fullImageTask.cancel();
if (entry.screenNailTask != null) entry.screenNailTask.cancel();
}
}
@Override
public void run() {
while (mActive) {
synchronized (this) {
if (!mDirty && mActive) {
updateLoading(false);
Utils.waitWithoutInterrupt(this);
continue;
}
}
mDirty = false;
UpdateInfo info = executeAndWait(new GetUpdateInfo());
synchronized (DataManager.LOCK) {
updateLoading(true);
long version = mSource.reload();
if (info.version != version) {
info.reloadContent = true;
info.size = mSource.getMediaItemCount();
}
if (!info.reloadContent) continue;
info.items = mSource.getMediaItem(info.contentStart, info.contentEnd);
MediaItem item = findCurrentMediaItem(info);
if (item == null || item.getPath() != info.target) {
info.indexHint = findIndexOfTarget(info);
}
}
executeAndWait(new UpdateContent(info));
}
}
// Returns the task if we started the task or the task is already started.
private Future<?> startTaskIfNeeded(int index, int which) {
if (index < mActiveStart || index >= mActiveEnd) return null;
ImageEntry entry = mImageCache.get(getVersion(index));
if (entry == null) return null;
if (which == BIT_SCREEN_NAIL && entry.screenNailTask != null) {
return entry.screenNailTask;
} else if (which == BIT_FULL_IMAGE && entry.fullImageTask != null) {
return entry.fullImageTask;
}
MediaItem item = mData[index % DATA_CACHE_SIZE];
Utils.assertTrue(item != null);
if (which == BIT_SCREEN_NAIL && (entry.requestedBits & BIT_SCREEN_NAIL) == 0) {
entry.requestedBits |= BIT_SCREEN_NAIL;
entry.screenNailTask =
mThreadPool.submit(
new ScreenNailJob(item), new ScreenNailListener(item.getDataVersion()));
// request screen nail
return entry.screenNailTask;
}
if (which == BIT_FULL_IMAGE
&& (entry.requestedBits & BIT_FULL_IMAGE) == 0
&& (item.getSupportedOperations() & MediaItem.SUPPORT_FULL_IMAGE) != 0) {
entry.requestedBits |= BIT_FULL_IMAGE;
entry.fullImageTask =
mThreadPool.submit(
item.requestLargeImage(), new FullImageListener(item.getDataVersion()));
// request full image
return entry.fullImageTask;
}
return null;
}
private void updateImageRequests() {
if (!mIsActive) return;
int currentIndex = mCurrentIndex;
MediaItem item = mData[currentIndex % DATA_CACHE_SIZE];
if (item == null || item.getPath() != mItemPath) {
// current item mismatch - don't request image
return;
}
// 1. Find the most wanted request and start it (if not already started).
Future<?> task = null;
for (int i = 0; i < sImageFetchSeq.length; i++) {
int offset = sImageFetchSeq[i].indexOffset;
int bit = sImageFetchSeq[i].imageBit;
task = startTaskIfNeeded(currentIndex + offset, bit);
if (task != null) break;
}
// 2. Cancel everything else.
for (ImageEntry entry : mImageCache.values()) {
if (entry.screenNailTask != null && entry.screenNailTask != task) {
entry.screenNailTask.cancel();
entry.screenNailTask = null;
entry.requestedBits &= ~BIT_SCREEN_NAIL;
}
if (entry.fullImageTask != null && entry.fullImageTask != task) {
entry.fullImageTask.cancel();
entry.fullImageTask = null;
entry.requestedBits &= ~BIT_FULL_IMAGE;
}
}
}
private long getVersion(int index) {
if (index < 0 || index >= mSize) return VERSION_OUT_OF_RANGE;
if (index >= mContentStart && index < mContentEnd) {
MediaItem item = mData[index % DATA_CACHE_SIZE];
if (item != null) return item.getDataVersion();
}
return MediaObject.INVALID_DATA_VERSION;
}
public void onLongTap(int slotIndex) {
if (mGetContent) return;
MediaItem item = mAlbumDataAdapter.get(slotIndex);
if (item == null) return;
mSelectionManager.setAutoLeaveSelectionMode(true);
mSelectionManager.toggle(item.getPath());
mSlotView.invalidate();
}
@Override
public int getItemIndex(Path path) {
int start = mSlotView.getVisibleStart();
int end = mSlotView.getVisibleEnd();
for (int i = start; i < end; ++i) {
MediaItem item = mAlbumDataAdapter.get(i);
if (item != null && item.getPath() == path) return i;
}
return -1;
}
@Override
public Bitmap run(JobContext jc) {
Bitmap bitmap = mItem.requestImage(MediaItem.TYPE_THUMBNAIL).run(jc);
if (jc.isCancelled()) return null;
if (bitmap != null) {
bitmap =
BitmapUtils.rotateBitmap(
bitmap, mItem.getRotation() - mItem.getFullImageRotation(), true);
}
return bitmap;
}
private boolean execute(DataManager manager, JobContext jc, int cmd, Path path) {
boolean result = true;
Log.v(TAG, "Execute cmd: " + cmd + " for " + path);
long startTime = System.currentTimeMillis();
switch (cmd) {
case R.id.action_delete:
manager.delete(path);
break;
case R.id.action_rotate_cw:
manager.rotate(path, 90);
break;
case R.id.action_rotate_ccw:
manager.rotate(path, -90);
break;
case R.id.action_toggle_full_caching:
{
MediaObject obj = manager.getMediaObject(path);
int cacheFlag = obj.getCacheFlag();
if (cacheFlag == MediaObject.CACHE_FLAG_FULL) {
cacheFlag = MediaObject.CACHE_FLAG_SCREENNAIL;
} else {
cacheFlag = MediaObject.CACHE_FLAG_FULL;
}
obj.cache(cacheFlag);
break;
}
case R.id.action_show_on_map:
{
MediaItem item = (MediaItem) manager.getMediaObject(path);
double latlng[] = new double[2];
item.getLatLong(latlng);
if (GalleryUtils.isValidLocation(latlng[0], latlng[1])) {
GalleryUtils.showOnMap((Context) mActivity, latlng[0], latlng[1]);
}
break;
}
case R.id.action_import:
{
MediaObject obj = manager.getMediaObject(path);
result = obj.Import();
break;
}
default:
throw new AssertionError();
}
Log.v(
TAG,
"It takes " + (System.currentTimeMillis() - startTime) + " ms to execute cmd for " + path);
return result;
}
public void setCurrentPhoto(Path path, int indexHint) {
if (mItemPath == path) return;
mItemPath = path;
mCurrentIndex = indexHint;
updateSlidingWindow();
updateImageCache();
fireModelInvalidated();
// We need to reload content if the path doesn't match.
MediaItem item = getCurrentMediaItem();
if (item != null && item.getPath() != path) {
if (mReloadTask != null) mReloadTask.notifyDirty();
}
}
private void onSingleTapUp(int slotIndex) {
if (!mIsActive) return;
if (mSelectionManager.inSelectionMode()) {
MediaItem item = mAlbumDataAdapter.get(slotIndex);
if (item == null) return; // Item not ready yet, ignore the click
mSelectionManager.toggle(item.getPath());
mSlotView.invalidate();
} else {
// Render transition in pressed state
mAlbumView.setPressedIndex(slotIndex);
mAlbumView.setPressedUp();
mHandler.sendMessageDelayed(
mHandler.obtainMessage(MSG_PICK_PHOTO, slotIndex, 0), FadeTexture.DURATION);
}
}
private void updateCurrentIndex(int index) {
mCurrentIndex = index;
updateSlidingWindow();
MediaItem item = mData[index % DATA_CACHE_SIZE];
mItemPath = item == null ? null : item.getPath();
updateImageCache();
updateImageRequests();
updateTileProvider();
mPhotoView.notifyOnNewImage();
if (mDataListener != null) {
mDataListener.onPhotoChanged(index, mItemPath);
}
fireModelInvalidated();
}
@Override
public Void call() throws Exception {
UpdateInfo info = mUpdateInfo;
mSourceVersion = info.version;
if (info.size != mSize) {
mSize = info.size;
if (mContentEnd > mSize) mContentEnd = mSize;
if (mActiveEnd > mSize) mActiveEnd = mSize;
}
if (info.indexHint == MediaSet.INDEX_NOT_FOUND) {
// The image has been deleted, clear mItemPath, the
// mCurrentIndex will be updated in the updateCurrentItem().
mItemPath = null;
updateCurrentItem();
} else {
mCurrentIndex = info.indexHint;
}
updateSlidingWindow();
if (info.items != null) {
int start = Math.max(info.contentStart, mContentStart);
int end = Math.min(info.contentStart + info.items.size(), mContentEnd);
int dataIndex = start % DATA_CACHE_SIZE;
for (int i = start; i < end; ++i) {
mData[dataIndex] = info.items.get(i - info.contentStart);
if (++dataIndex == DATA_CACHE_SIZE) dataIndex = 0;
}
}
if (mItemPath == null) {
MediaItem current = mData[mCurrentIndex % DATA_CACHE_SIZE];
mItemPath = current == null ? null : current.getPath();
}
updateImageCache();
updateTileProvider();
updateImageRequests();
fireModelInvalidated();
return null;
}
private void onGetContent(final MediaItem item) {
DataManager dm = mActivity.getDataManager();
Activity activity = mActivity;
if (mData.getString(GalleryActivity.EXTRA_CROP) != null) {
Uri uri = dm.getContentUri(item.getPath());
Intent intent =
new Intent(CropActivity.CROP_ACTION, uri)
.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT)
.putExtras(getData());
if (mData.getParcelable(MediaStore.EXTRA_OUTPUT) == null) {
intent.putExtra(CropExtras.KEY_RETURN_DATA, true);
}
activity.startActivity(intent);
activity.finish();
} else {
Intent intent =
new Intent(null, item.getContentUri()).addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
activity.setResult(Activity.RESULT_OK, intent);
activity.finish();
}
}
private void pickPhoto(int slotIndex, boolean startInFilmstrip) {
if (!mIsActive) return;
if (!startInFilmstrip) {
// Launch photos in lights out mode
mActivity.getGLRoot().setLightsOutMode(true);
}
MediaItem item = mAlbumDataAdapter.get(slotIndex);
if (item == null) return; // Item not ready yet, ignore the click
if (mGetContent) {
onGetContent(item);
} else if (mLaunchedFromPhotoPage) {
TransitionStore transitions = mActivity.getTransitionStore();
transitions.put(PhotoPage.KEY_ALBUMPAGE_TRANSITION, PhotoPage.MSG_ALBUMPAGE_PICKED);
transitions.put(PhotoPage.KEY_INDEX_HINT, slotIndex);
onBackPressed();
} else {
// Get into the PhotoPage.
// mAlbumView.savePositions(PositionRepository.getInstance(mActivity));
Bundle data = new Bundle();
data.putInt(PhotoPage.KEY_INDEX_HINT, slotIndex);
data.putParcelable(
PhotoPage.KEY_OPEN_ANIMATION_RECT, mSlotView.getSlotRect(slotIndex, mRootPane));
data.putString(PhotoPage.KEY_MEDIA_SET_PATH, mMediaSetPath.toString());
data.putString(PhotoPage.KEY_MEDIA_ITEM_PATH, item.getPath().toString());
data.putInt(PhotoPage.KEY_ALBUMPAGE_TRANSITION, PhotoPage.MSG_ALBUMPAGE_STARTED);
data.putBoolean(PhotoPage.KEY_START_IN_FILMSTRIP, startInFilmstrip);
data.putBoolean(PhotoPage.KEY_IN_CAMERA_ROLL, mMediaSet.isCameraRoll());
if (startInFilmstrip) {
mActivity.getStateManager().switchState(this, FilmstripPage.class, data);
} else {
mActivity.getStateManager().startStateForResult(SinglePhotoPage.class, REQUEST_PHOTO, data);
}
}
}
public static boolean isPanorama(MediaItem item) {
if (item == null) return false;
int w = item.getWidth();
int h = item.getHeight();
return (h > 0 && w / h >= 2);
}